I have some Peterson brass for now, but am on the wait list for ADG. Will also be running N570 as that's what I could find in stock. Thank you again for all the info.
Yes those are the mags I have on the way. Guess I could start with a shorter freebore and see how it shoots, then throat it longer if needed. Thanks again for the info I am new to the LA game, have run nothing but SA till now.